fix(parser): parse Dell iDRAC10 TSR inventory from captured Redfish walk

iDRAC10-generation TSR bundles no longer ship sysinfo_dcim_view.xml /
sysinfo_dcim_softwareidentity.xml, so the dell parser produced events but
no hardware inventory for them. These bundles instead carry
redfishidracwalk.tar.gz, a captured dump of the iDRAC's own Redfish tree.

Add vendors/redfishtree, a shared helper that reconstructs a path->document
map from a tar.gz/zip-packaged Redfish walk (vendor-independent detection:
path hint + /redfish/v1 service-root/Systems/Chassis structural check) and
replays it through the existing collector.ReplayRedfishFromRawPayloads.
vendors/dell uses it to enrich DCIM-XML-derived data (append-only, existing
dedupe passes resolve overlaps). Also register vendors/redfishwalk, a
low-confidence fallback VendorParser using the same helpers, so any other
vendor that starts shipping this kind of raw Redfish walk is picked up
automatically without a dedicated parser.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

internal/parser/vendors/dell/parser.go

@@ -48,6 +48,8 @@ func (p *Parser) Detect(files []parser.ExtractedFile) int {
 			confidence += 20
 		case strings.HasSuffix(path, "curr_lclog.xml"):
 			confidence += 10
+		case strings.HasSuffix(path, "redfishidracwalk.tar.gz"):
+			confidence += 20
 		case path == "signature":
 			confidence += 5
 		}
@@ -94,6 +96,7 @@ func (p *Parser) Parse(files []parser.ExtractedFile) (*models.AnalysisResult, er
 	if f := findBySuffix(expanded, "curr_lclog.xml"); f != nil {
 		result.Events = append(result.Events, parseLCEventsXML(f.Content)...)
 	}
+	parseRedfishWalk(findRedfishWalkArchive(expanded), result)
 
 	result.Hardware.Storage = dedupeStorage(result.Hardware.Storage)
 	result.Hardware.Volumes = dedupeVolumes(result.Hardware.Volumes)